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[DCCP] CCID2: Initial CCID2 (TCP-Like) implementation
[net-next-2.6.git] / net / dccp / ccids / ccid2.h
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1/*
2 * net/dccp/ccids/ccid2.h
3 *
4 * Copyright (c) 2005 Andrea Bittau <a.bittau@cs.ucl.ac.uk>
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
19 */
20#ifndef _DCCP_CCID2_H_
21#define _DCCP_CCID2_H_
22
23struct ccid2_seq {
24 u64 ccid2s_seq;
25 unsigned long ccid2s_sent;
26 int ccid2s_acked;
27 struct ccid2_seq *ccid2s_prev;
28 struct ccid2_seq *ccid2s_next;
29};
30
31/** struct ccid2_hc_tx_sock - CCID2 TX half connection
32 *
33 * @ccid2hctx_ssacks - ACKs recv in slow start
34 * @ccid2hctx_acks - ACKS recv in AI phase
35 * @ccid2hctx_sent - packets sent in this window
36 * @ccid2hctx_lastrtt -time RTT was last measured
37 * @ccid2hctx_arsent - packets sent [ack ratio]
38 * @ccid2hctx_ackloss - ack was lost in this win
39 * @ccid2hctx_rpseq - last consecutive seqno
40 * @ccid2hctx_rpdupack - dupacks since rpseq
41*/
42struct ccid2_hc_tx_sock {
43 int ccid2hctx_cwnd;
44 int ccid2hctx_ssacks;
45 int ccid2hctx_acks;
46 int ccid2hctx_ssthresh;
47 int ccid2hctx_pipe;
48 int ccid2hctx_numdupack;
49 struct ccid2_seq *ccid2hctx_seqbuf;
50 struct ccid2_seq *ccid2hctx_seqh;
51 struct ccid2_seq *ccid2hctx_seqt;
52 long ccid2hctx_rto;
53 long ccid2hctx_srtt;
54 long ccid2hctx_rttvar;
55 int ccid2hctx_sent;
56 unsigned long ccid2hctx_lastrtt;
57 struct timer_list ccid2hctx_rtotimer;
58 unsigned long ccid2hctx_arsent;
59 int ccid2hctx_ackloss;
60 u64 ccid2hctx_rpseq;
61 int ccid2hctx_rpdupack;
62 int ccid2hctx_sendwait;
63};
64
65struct ccid2_hc_rx_sock {
66 int ccid2hcrx_data;
67};
68
69#endif /* _DCCP_CCID2_H_ */